Ultrasound-Guided Inactivation of Trigger Points Combined with Muscle Fascia Stripping by Liquid Knife in Treatment of Postherpetic Neuralgia Complicated with Abdominal Myofascial Pain Syndrome: A Prospective and Controlled Clinical Study

Table 1

Characteristics of four groups at baseline (, n).

Characteristic	C1 (N = 33)	C2 (N = 33)	PL (N = 33)	PA (N = 33)
Age (years)	61.3 ± 10.3	62.1 ± 9.6	62.4 ± 12.7	60.9 ± 13.4
Gender (male/female)	17/16	15/18	14/19	13/20
Weight (kg)	59.4 ± 18.2	61.4 ± 20.5	58.9 ± 17.6	62.1 ± 19.8
Duration of PHN (months)	7.9 ± 2.5	8.2 ± 3.1	7.8 ± 2.2	8.1 ± 2.2
Cardiac disease	8/33	10/33	9/33	10/33
Pulmonary disease	15/33	16/33	14/33	17/33
Liver and renal diseases	8/33	9/33	7/33	8/33
Metabolism and nutrition disorders	17/33	16/33	16/33	19/33